Tool to analyze and minimize loaded modules.

[Mike Rumph <mi...@oracle.com>]

Hello all,

I was wondering is there is any tool available that can analyze the 
directives in an httpd instance's configuration files and determine 
which loaded module are not being used.
If not, maybe such a tool could be quite useful for reducing the memory 
footprint.

Thanks,

Mike Rumph

Re: Tool to analyze and minimize loaded modules.

[Mike Rumph <mi...@oracle.com>]

Hello Christian,

Excellent.  This looks very useful.
And yes.  On second thought, this topic may be more suitable for the 
user mailing list.
There are maybe many Apache users who could benefit from this.
I started it on dev because I was considering developing something on 
this if there wasn't already.
Please, feel free to present this on the user mailing list.

Thanks,

Mike


On 5/18/2017 2:22 PM, Christian Folini wrote:
> Hello Mike,
>
> This is probably more a user-ML related question, but I have a little
> script to do this in the 2nd of my Apache/ModSecurity tutorials at
> https://www.netnea.com/cms/apache-tutorial-2_minimal-apache-configuration/
> -> Step 9
>
> Cheers,
>
> Christian
>
>
> On Mon, May 15, 2017 at 09:12:52AM -0700, Mike Rumph wrote:
>> Hello all,
>>
>> I was wondering is there is any tool available that can analyze the
>> directives in an httpd instance's configuration files and determine which
>> loaded module are not being used.
>> If not, maybe such a tool could be quite useful for reducing the memory
>> footprint.
>>
>> Thanks,
>>
>> Mike Rumph

Re: Tool to analyze and minimize loaded modules.

[Christian Folini <ch...@netnea.com>]

Hello Mike,

This is probably more a user-ML related question, but I have a little
script to do this in the 2nd of my Apache/ModSecurity tutorials at
https://www.netnea.com/cms/apache-tutorial-2_minimal-apache-configuration/
-> Step 9

Cheers,

Christian


On Mon, May 15, 2017 at 09:12:52AM -0700, Mike Rumph wrote:
> Hello all,
> 
> I was wondering is there is any tool available that can analyze the
> directives in an httpd instance's configuration files and determine which
> loaded module are not being used.
> If not, maybe such a tool could be quite useful for reducing the memory
> footprint.
> 
> Thanks,
> 
> Mike Rumph

-- 
Christian Folini - <ch...@netnea.com>

Re: Tool to analyze and minimize loaded modules.

[Mike Rumph <mi...@oracle.com>]

Thanks Yehuda,

That looks like a good starting point.

On 5/15/2017 10:10 AM, Yehuda Katz wrote:
> The server-info handler can give you some of that information, but not 
> 100%.
> It lists each module and the relevant configuration, but mod_info 
> itself is an example of that not being enough:
> SetHandler server-info is listed in core.c and for me there is no 
> configuration listed under mod_info.
>
> I cut this down from the full config to show relevant parts.
>
> Inline image 2
>
> Inline image 1
>
> - Y
>
> On Mon, May 15, 2017 at 12:12 PM, Mike Rumph <mike.rumph@oracle.com 
> <ma...@oracle.com>> wrote:
>
>     Hello all,
>
>     I was wondering is there is any tool available that can analyze
>     the directives in an httpd instance's configuration files and
>     determine which loaded module are not being used.
>     If not, maybe such a tool could be quite useful for reducing the
>     memory footprint.
>
>     Thanks,
>
>     Mike Rumph
>
>

Re: Tool to analyze and minimize loaded modules.

[Yehuda Katz <ye...@ymkatz.net>]

The server-info handler can give you some of that information, but not 100%.
It lists each module and the relevant configuration, but mod_info itself is
an example of that not being enough:
SetHandler server-info is listed in core.c and for me there is no
configuration listed under mod_info.

I cut this down from the full config to show relevant parts.

[image: Inline image 2]

[image: Inline image 1]

- Y

On Mon, May 15, 2017 at 12:12 PM, Mike Rumph <mi...@oracle.com> wrote:

> Hello all,
>
> I was wondering is there is any tool available that can analyze the
> directives in an httpd instance's configuration files and determine which
> loaded module are not being used.
> If not, maybe such a tool could be quite useful for reducing the memory
> footprint.
>
> Thanks,
>
> Mike Rumph
>